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33 lines
1008 B
C++
33 lines
1008 B
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WindowsConsole.h"
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#include <windows.h>
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#include <fcntl.h>
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namespace mozilla {
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// This code attaches the process to the appropriate console.
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void UseParentConsole() {
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if (AttachConsole(ATTACH_PARENT_PROCESS)) {
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// Redirect the standard streams to the existing console, but
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// only if they haven't been redirected to a valid file.
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// Visual Studio's _fileno() returns -2 for the standard
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// streams if they aren't associated with an output stream.
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if (_fileno(stdout) == -2) {
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freopen("CONOUT$", "w", stdout);
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}
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// There is no CONERR$, so use CONOUT$ for stderr as well.
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if (_fileno(stderr) == -2) {
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freopen("CONOUT$", "w", stderr);
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}
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if (_fileno(stdin) == -2) {
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freopen("CONIN$", "r", stdin);
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}
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}
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}
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} // namespace mozilla
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